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Efficient Motion Magnification

机译:高效运动放大

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摘要

Video motion magnification (VMM) allows to amplify hardly visible changes in the video input sequence. It is possible to amplify breathing motion of hospital patients or oscillations of some mechanical element without need to connect measuring devices. On the other hand modified VMM algorithm can be used to extinguish motion before processing with another method. Unfortunately, algorithm in its full, but slowest version uses new pyramids instead laplacian ones and requires remarkable computational power in each stage of processing and that problem is solved by GPU-based implementation of basic operations using CUDA technology and scheduling them by CPU. That approach lets to run all computations on GPU. Additionally in comparison with previous studies temporal filter was changed to butterworth one. Although testing hardware was only able to run low resolution in real time, there are no doubts that better GPU would be able to run 640 × 480 resolution in real time.
机译:视频运动放大率(VMM)允许放大视频输入序列中几乎不可见的变化。无需连接测量设备,就可以放大住院病人的呼吸运动或某些机械元件的振动。另一方面,修改后的VMM算法可用于在使用其他方法进行处理之前熄灭运动。不幸的是,算法完整但速度最慢的版本使用新的金字塔而不是拉普拉斯金字塔,并且在处理的每个阶段都需要出色的计算能力,而该问题是通过使用CUDA技术的基于GPU的基本操作实现并由CPU对其进行调度来解决的。这种方法可以在GPU上运行所有计算。此外,与以前的研究相比,时间过滤器已更改为Butterworth过滤器。尽管测试硬件只能实时运行低分辨率,但毫无疑问,更好的GPU能够实时运行640×480分辨率。

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